Tranquility
®
Large
Water-to-Water
(TMW)
Series
Models 360 - 840
Commercial EarthPure
®
Water-to-Water
Water-Source
Heat Pumps - 60Hz
Installation, Operation
& Maintenance
97B0090N01
Revised: June 12, 2020
Table of Contents
Model Nomenclature 3
General Information 4
Unit Physical Data 6
Unit Dimensional Data 7
Unit Installation 8
Piping Installation 9
Load Plumbing Installation 10
Water Temperature Requirements 10
Water-Loop Heat Pump Applications 11
Ground-Water Heat Pump Applications 12
Ground-Loop Heat Pump Applications 13
Electrical - Line Voltage 14
Wiring Diagram Matrix 17
Typical Wiring Diagram 18
Refrigeration Circuit Diagram 21
Heat Exchangers 22
Control System 23
Control System Optional Features 31
Control Sequence of Operation from BAS 32
BACnet, Modbus, N2 Points List 33
Unit Commissioning & Operating Conditions 39
Piping System Cleaning & Flushing 40
Pre-Start Up Procedures 41
Pre Start-up Check List 43
Unit Start Up Procedures 44
Operation and Maintenance 47
Operational Limitations 49
Compressor Information 50
Refrigeration System Recharging 51
Sequence of Operation 52
Factory Installed Options 53
Field Installed Options 53
Troubleshooting Guide 54
Start Up Form 55
Refrigeration Troubleshooting Form 57
Warranty (US & Canada) 58
Revision History 60
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tranquility
®
Large Water-to-Water
(
TMW
)
Series
Rev.: June 12, 2020
ClimateMaster Water-Source Heat Pumps
2
This Page Intentionally Left Blank
climatemaster.com
3
Tranquility
®
Large Water-to-Water
(
TMW
)
Series
Rev.: June 12, 2020
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Model Nomenclature
T M W C3 6 0 SF S A R S 0 S
1 2 3 4 5 6 7
8
9 10 11 12 13 14 15
TMW = TRANQUILITY
®
MEDIUM TEMPERATURE
WATER TO WATER
MODEL TYPE
UNIT SIZE
360
REVISION LEVEL
C = CURRENT
VOLTAGE
CONTROLS
S = SCROLL
COMPRESSOR TYPE
REFRIGERANT
R = REVERSE CYCLE HEAT PUMP
APPLICATION
0 = NONE
REFRIGERANT OPTIONS
MODEL CONFIGURATION
WATER ISOLATION VALVES
0 = NONE
600
840
A = HFC-410A
C = LOAD MOTORIZED VALVES
S = SINGLE UNIT CONTROL
L = LON
H = 208-230/60/3
F = 460/60/3
N = 575/60/3
S = STANDARD
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tranquility
®
Large Water-to-Water
(
TMW
)
Series
Rev.: June 12, 2020
ClimateMaster Water-Source Heat Pumps
4
General Information
WARNING! To avoid the release of refrigerant into the
atmosphere, the refrigerant circuit of this unit must be
serviced only by technicians who meet local, state, and
federal prociency requirements.
CAUTION! To avoid equipment damage, DO NOT use
these units as a source of heating or cooling during the
construction process. The mechanical components and lters
can quickly become clogged with construction dirt and debris,
which may cause system damage and void product warranty.
� WARNING! �
� WARNING! �
� CAUTION! �
Safety
Warnings, cautions, and notices appear throughout this
manual. Read these items carefully before attempting any
installation, service, or troubleshooting of the equipment.
DANGER: Indicates an immediate hazardous situation,
which if not avoided will result in death or serious injury.
DANGER labels on unit access panels must be observed.
WARNING: Indicates a potentially hazardous situation,
which if not avoided could result in death or serious injury.
CAUTION: Indicates a potentially hazardous situation or
an unsafe practice, which if not avoided could result in
minor or moderate injury or product or property damage.
NOTICE: Notication of installation, operation, or
maintenance information, which is important, but which is
not hazard-related.
WARNING! All refrigerant discharged from this unit must
be recovered WITHOUT EXCEPTION. Technicians must
follow industry accepted guidelines and all local, state, and
federal statutes for the recovery and disposal of refrigerants.
If a compressor is removed from this unit, refrigerant circuit
oil will remain in the compressor. To avoid leakage of
compressor oil, refrigerant lines of the compressor must be
sealed after it is removed.
WARNING! The installation of water-source heat pumps and
all associated components, parts, and accessories which
make up the installation shall be in accordance with the
regulations of ALL authorities having jurisdiction and MUST
conform to all applicable codes. It is the responsibility of
the installing contractor to determine and comply with ALL
applicable codes and regulations.
� WARNING! �
DANGER
!
• Electric shock hazard!
• May result in injury or death!
• Disconnect power supply(ies)
before servicing!
• Refer servicing to qualified
service personnel.
• Risque de choc électrique!
• Résultat de mai dans dommages
ou la mort!
• Debrancher avant d’entreprendre
le dépannage de l’appareil!
• Consulter un réparateur qualifie
pour le dépannage.
DANGER
!
CAUTION ATTENTION
! !
• Unit to be serviced by qualified
personnel only.
• Refrigerant system under
pressure.
• Relieve pressure before using
tourch.
• Recover refrigerant and store or
dispose of properly.
• Confier la maintenance á un
technicien qualifie.
• Le systéme frigorifique sous
pression.
• Décomprimer avant d’exposer á
la flamme.
• Récuperér le frigorigene et le
stocker ou le détrire
correctement.
RECOVER
REFRIGERANT
climatemaster.com
5
Tranquility
®
Large Water-to-Water
(
TMW
)
Series
Rev.: June 12, 2020
THE SMART SOLUTION FOR ENERGY EFFICIENCY
General Information, Cont’d.
Inspection - Upon receipt of the equipment, carefully
check the shipment against the bill of lading. Make sure
all units have been received. Inspect the carton or crating
of each unit, and inspect each unit for damage. Assure
the carrier makes proper notation of any shortages or
damage on all copies of the freight bill and completes a
common carrier inspection report. Concealed damage
not discovered during unloading must be reported to
the carrier within 15 days of receipt of shipment. If not
led within 15 days, the freight company can deny the
claim without recourse. Note: It is the responsibility of
the purchaser to le all necessary claims with the carrier.
Notify the ClimateMaster Trafc Department of all
damage within fteen (15) days of shipment.
Storage - Equipment should be stored in its original
packaging in a clean, dry area. Store units in an upright
position at all times. Do not stack.
Unit Protection - Cover units on the job site with
either shipping packaging, vinyl lm, or an equivalent
protective covering. Cap the open ends of pipes stored
on the job site. In areas where painting, plastering, and/
or spraying has not been completed, all due precautions
must be taken to avoid physical damage to the units and
contamination by foreign material. Physical damage and
contamination may prevent proper start-up and may
result in costly equipment clean-up.
Examine all pipes, ttings, and valves before installing
any of the system components. Remove any dirt or trash
found in or on these components.
Pre-Installation - Installation, Operation, and Maintenance
instructions are provided with each unit. The installation
site chosen should include adequate service clearance
around the unit. Before unit start-up, read all manuals
and become familiar with the unit and its operation.
Thoroughly check the system before operation.
Prepare units for installation as follows:
1. Compare the electrical data on the unit nameplate with
ordering and shipping information to verify that the
correct unit has been shipped.
2. Keep the cabinet covered with the shipping packaging
until installation is complete and all plastering, painting,
etc. is nished.
3. Verify refrigerant tubing is free of kinks or dents and
that it does not touch other unit components.
CAUTION! All three phase scroll compressors must have
direction of rotation veried at start-up. Verication is
achieved by checking compressor Amp draw. Amp draw
will be substantially lower compared to nameplate values.
Additionally, reverse rotation results in an elevated sound
level compared to correct rotation. Reverse rotation will result
in compressor internal overload trip within several minutes.
Verify compressor type before proceeding.
CAUTION! DO NOT store or install units in corrosive
environments or in locations subject to temperature or
humidity extremes (e.g., attics, garages, rooftops, etc.).
Corrosive conditions and high temperature or humidity can
signicantly reduce performance, reliability, and service life.
Always move and store units in an upright position. Tilting
units on their sides may cause equipment damage.
� CAUTION! �
� CAUTION! �
� CAUTION! �
CAUTION! CUT HAZARD - Failure to follow this caution may
result in personal injury. Sheet metal parts may have sharp
edges or burrs. Use care and wear appropriate protective
clothing, safety glasses and gloves when handling parts and
servicing heat pumps.
4. Do not apply power to compressors until startup.
Verify isolation switches (at bottom of low voltage
section) are off.
5. Verify I/O Flex 6126 board has jumper set to 5 Vac.
See Wire Diagram.
Handling - Carefully remove the unit’s packaging. The
steel base cut-outs provide maneuverability by forklift or
pallet jack into its nal position (See Rigging and Lifting
Procedures).
Rigging and Lifting - Each unit should be lifted by using
a pallet jack or fork lift in base slots. If it is necessary to
utilize a crane for rigging or lifting, use lifting straps and
spreader bars.
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tranquility
®
Large Water-to-Water
(
TMW
)
Series
Rev.: June 12, 2020
ClimateMaster Water-Source Heat Pumps
6
Unit Physical Data
Unit Maximum Water Working Pressure
Options Max Working Pressure PSIG [kPa]
Base Unit 300 [2,068]
Motorized Valves 300 [2,068]
Model Left Front Left Rear Right Front Right Rear
TMW360 345 [156] 350 [159] 275 [125] 355 [161]
TMW600 492 [223] 500 [227] 400 [181] 533 [242]
TMW840 557 [252] 565 [255] 452 [204] 601 [271]
Unit Corner Weights (lbs) [kg]
Model TMW360 TMW600 TMW840
Compressor (qty) Scroll (2) Scroll (2) Scroll (2)
Compressor Oil Type
ALL REV B, C ALL
POE PVE PVE
Factory Charge HFC-410A (lbs) [kg] / circuit 15 [6.8] 27.5 [12.5] 33.8 [15.4]
Indoor / Load Water connection sizes FPT (in) 2 2-1/2 2-1/2
Outdoor / Source Water connection size FPT (in) 2 2-1/2 2-1/2
Weight - Operating (lbs) [kg] 1400 [635] 2055 [932] 2305 [1042]
Weight - Shipping (lbs) [kg] 1325 [601] 1925 [873] 2175 [983]
Water Volume (Source)
Gallons [Liters] 4.7 [17.8] 8.3 [31.4] 9.5 [36]
Water Volume (Load)
Gallons [Liters] 4.4 [16.7] 7.3 [27.6] 8.5 [32.2]
climatemaster.com
7
Tranquility
®
Large Water-to-Water
(
TMW
)
Series
Rev.: June 12, 2020
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Unit Dimensional Data
FRONT
COMPRESSOR
ACCESS PANEL
2 ft. [61cm]
OPTIONAL SERVICE
ACCESS (BOTH SIDES)
NOTE 4
MINIMUM
2-1/2 ft. [76cm]
REQUIRED SERVICE
ACCESS
[860]
MINIMUM
18” REQUIRED
SERVICE ACCESS
HIGH VOLTAGE
CONTROL BOX
RV ACCESS
PANEL
LOW VOLTAGE
CONTROL BOX
HIGH VOLTAGE
LOW VOLTAGE
NOTE:
1. DIMENSIONS SHOWN IN INCHES AND [MILLIMETERS].
2. TMW360 WATER CONNECTIONS ARE 2” FPT.
3. TMW600 AND 840 WATER CONNECTIONS ARE 2.5” FPT.
4. FOR MULTIPLE UNITS PLACED SIDE BY SIDE. ALLOW SUFFICIENT SPACE FRONT OR BACK TO REMOVE UNIT.
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tranquility
®
Large Water-to-Water
(
TMW
)
Series
Rev.: June 12, 2020
ClimateMaster Water-Source Heat Pumps
8
Unit Installation
TMW Unit Location - These units are not designed for
unconditioned indoor or outdoor installation. Locate the
unit in an INDOOR dry, conditioned air (see Operational
Limits Table - 5) area that allows enough space for service
personnel to remove access panels and to perform typical
maintenance or repairs in the future.
The installation of water-source heat pump units and
all associated components, parts and accessories which
make up the installation must be in accordance with
the regulations of ALL authorities having jurisdiction
and MUST conform to all applicable codes. It is the
responsibility of the Installing Contractor to determine
and comply with ALL applicable codes and regulations.
ClimateMaster recommends locking down the TMW to a
concrete base or to three 4” eld supplied base rails that
can support the unit weight. Base pan has 6 bolt holes for
securing to base or rail.
Note: If springs or vibration isolation pads are used,
size and weight distribution must be determined by a
qualied structural engineer.
Recommended service clearances are 36 inch (91 cm)
at front, 30 inch (76 cm) at rear, and 18 inch (46 cm)
above. Optional service clearances 24 inch (61 cm) each
side. Provide sufcient room to make water and electrical
connections. Access panel screws are for shipping and
may be removed prior to setting the unit. These units are
not approved for outdoor installation and, therefore, must
be installed inside the structure being conditioned.
Note: Do not apply power to compressors until startup.
Verify isolation switches (at bottom of low voltage
section) are off.
The Load side should have a minimum capacity of 6
gallons per ton of cooling ouput capacity to prevent
compressor short cycling.
climatemaster.com
9
Tranquility
®
Large Water-to-Water
(
TMW
)
Series
Rev.: June 12, 2020
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Piping Installation
flex-conduit
Field-supplied
power disconnect
Field-supplied
Load connections
Source connections
Installation of Supply and Return Piping for
Load and Source
Follow these piping guidelines.
1. Install a drain valve at the base of each supply and
return riser to facilitate system ushing.
2. Install shut-off / balancing valves and unions at each
unit to permit unit removal and for servicing.
3. Install shut off valves to isolate strainers.
4. Install 60 mesh strainers on unit inlet for both
Source and Load. Recommend basket strainer on
Source.
5. Select the proper hose length to allow slack between
connection points. Hoses may vary in length by +2%
to -4% under pressure.
6. Exceeding the minimum bend radius may cause the
hose to collapse which reduces water ow rate. Install
an angle adapter to avoid sharp bends in the hose
when the radius falls below the required minimum and
causes a slight kink.
7. Install (4) petes ports, install on both Source and Load
inlets and outlets.
8. Both Load and Source must adhere to Water Quality
Standards. See Table 1.
Optional pressure-rated hose assemblies designed
specically for use with ClimateMaster units are available.
Similar hoses can be obtained from alternate suppliers.
Supply and return hoses are tted with swivel-joint
ttings at one end to prevent kinking during installation.
Refer to Figure 1 for an illustration of a Supply/Return
Hose Kit. Male adapters secure hose assemblies to the
unit. Install hose assemblies properly and check them
regularly to avoid system failure and reduced service life.
� CAUTION! �
CAUTION! Corrosive system water requires corrosion
resistant ttings and hoses and possibly water treatment.
Figure 1: Supply/Return Hose Kit
Figure 2: Connection Locations
Insulation is not required on loop water piping except
where the piping runs through unheated areas or outside
the building or when the loop water temperature is
below the minimum expected dew point of the pipe
ambient temperature. Insulation is required if loop water
temperature drops below the dew point.
Pipe joint compound is not necessary when Teon
threaded tape is pre-applied to hose assemblies or when
ared-end connections are used. If pipe joint compound
is preferred, use compound only in small amounts on the
pipe threads of the tting adapters. Prevent sealant from
reaching the ared surfaces of the joint.
Note: When antifreeze is used in the loop, assure
that any Teon
®
tape or pipe joint compound used is
compatible.
Maximum allowable torque for brass ttings is 30 ft-lbs
[41 N-m]. If a torque wrench is not available, tighten
nger-tight plus one quarter turn. Tighten steel ttings
as necessary.
� WARNING! �
WARNING! Piping must comply with all applicable codes.
� WARNING! �
WARNING! Do not bend or kink supply lines or hoses.
Rib Crimped
Length
(2 ft [0.6m] Length Standard)
Swivel
Brass
Fitting
Brass
Fitting
MPT
Reborde Acanalado
Longitud
(Long. Estándar de 2 pies)
Accesorio
Giratorio
de Bronce
Accesorio
de Bronce
MPT
MPT
MPT
Rib Crimped
Length
(0.6m Length Standard)
Swivel
Brass
Fitting
Brass
Fitting
MPT
MPT
(Typical Both Hoses)
WARNING! Polyolester Oil, commonly known as POE oil, or
Polyvinylether, commonly known as PVE oil, are synthetic
oils used in many refrigeration systems including those with
HFC-410A refrigerant. POE, or PVE oil, if it ever comes in
contact with PVC or CPVS piping, may cause failure of the
PVC/CPVC. PVC/CPVC piping should never be used as
supply or return water piping with water source heat pump
products containing HFC-410A as system failures and
property damage may result.
� WARNING! �
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tranquility
®
Large Water-to-Water
(
TMW
)
Series
Rev.: June 12, 2020
ClimateMaster Water-Source Heat Pumps
10
Load Plumbing Installation
WATER TEMPERATURE REQUIREMENTS
TMW Unit Load Plumbing - The applications are too
varied to describe in this document. However, some basic
guidelines will be presented. Much of the discussions on
water loop applications would be valid for the load plumbing
discussion as well. All plumbing must conform to local codes
with the following considerations:
Active portion of loop requires 6 gallons of water per ton of
unit(s) capacity, see gure 3. Must use storage/buffer tank
if needed.
Wide temperature variation applications such as
heating/cooling coils:
• Employ piping materials that are rated for the maximum
temperature and pressure combination. This excludes
PVC for most heating applications.
• Ensure that load water flow in high temperature heating
applications is at least 3 gpm per ton [3.9 l/m per kW] to
improve performance and reduce nuisance high pressure
faults.
• DO NOT employ plastic to metal threaded joints
• Utilize a pressure tank and air separator vent system to
equalize pressure and remove air.
Swimming Pool Hot Tub Applications:
• Load exchanger should be isolated with secondary heat
exchanger constructed of anti-corrosion material for
chlorine/bromine fluid applications.
Potable Water Applications:
• Load exchanger should be isolated with secondary heat
exchanger.
• Ensure load water flow in high temperature heating
applications is at least 3 gpm per ton to improve
performance and reduce nuissance to high
pressure faults.
Figure 3: Load Water System (Not all components of system shown. See engineering specications and drawings)
Note: The manufacturer strongly recommends all piping
connections, both internal and external to the unit, be
pressure tested by an appropriate method prior to any
nishing of the interior space or before access to all
connections is limited. Test pressure may not exceed
the maximum allowable pressure for the unit and all
components within the water system. The manufacturer
will not be responsible or liable for damages from water
leaks due to inadequate or lack of a pressurized leak
test, or damages caused by exceeding the maximum
pressure rating during installation.
Cooling Water Temperature - Unit is designed for a
leaving water temperature range from 40°F to 62°F.
TMW360-840 units can operate safely in this range
without the need of special controls or glycol additives.
Leaving water temperatures below 40°F can result in
TMW
Front
Out
Unions
Hose
Pump
AYS30060 -
Y-Strainer
(3” - 60 mesh)
Bypass Valve
(Not required if
unit has Source MWV)
Backow
Preventer
Revision A Models Only
60”
Flow to
Load Field
Flow from
Load Field
Pressure Relief
Valve
Manual Isolation
Valves
Active Portion
of Loop
2” (360)
2.5” (600)
AHK
Hose Kit (1)
Pressure taps
with shuto
valves and gages
In
(No Scale)
ADPS (1) KIT
Dierential Pressure Sensor Kit
(Wire to LVTB2 15, 16, 17)
Note: Rev B ADPS Factory installed and wired internal
evaporator suction temperatures below the freezing point
of water. Therefore, a glycol solution additive is required
that will protect the evaporator from freeze ups at lower
operating suction temperatures. The full range of leaving
uid temperature using glycol is 24°F to 62°F.
climatemaster.com
11
Tranquility
®
Large Water-to-Water
(
TMW
)
Series
Rev.: June 12, 2020
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Water-Loop Heat Pump Applications
Hose
Unions
ABS30060-
Basket Strainer
(3”- 60 mesh)
Flow from
Source
Flow to
Source
2” (360)
2.5” (600)
AHK
Hose Kit (1)
Pressure taps
with shuto
valves and gages
Out
In
TMW
Front
(No Scale)
Revision A Models Only
60”
ADPS (1) KIT
Dierential Pressure
Sensor Kit
(Wire to LVTB2 13, 14, 17)
Note: Rev B ADPS Factory installed and wired internal
Commercial systems typically include a number of units
plumbed to a common piping system. Any unit plumbing
maintenance work can introduce air into the piping system,
therefore air elimination equipment is a major portion
of the mechanical room plumbing. In piping systems
expected to utilize water temperatures below 50°F [10°C],
1/2" [13mm] closed cell insulation is required on all piping
surfaces to eliminate condensation. Metal to plastic
threaded joints should never be employed due to their
tendency to leak over time. Teon tape thread sealant is
recommended for NPT water connections (commercial
class) to minimize internal fouling of the heat exchanger.
Do not overtighten connections and route piping so as not
to interfere with service or maintenance access. Hose kits
are available from ClimateMaster for connection between
the TMW Series and the piping system. The piping system
should be ushed to remove dirt, piping chips, and other
foreign material prior to operation. See Piping System
Cleaning and Flushing Procedures later in this document.
The ow rate is usually set between 2.25 gpm and 3 gpm
per ton [2.9 l/m and 4.5 l/m per kW] of cooling capacity.
ClimateMaster recommends 2.5 gpm per ton [3.2 l/m per
kW] for most applications of water loop heat pumps. To
insure proper maintenance and servicing, P/T ports are
imperative for temperature and ow verication, as well as
performance checks.
Cooling Tower/Boiler Systems typically utilize a
common loop maintained 60-90°F [16-32°C]. The use
of a closed circuit evaporative cooling tower with a
secondary heat exchanger between the tower and the
water loop is recommended. If an open type cooling
tower is used continuously, chemical treatment and
ltering will be necessary.
Figure 4: Source Water System (Not all components of system shown. See engineering specications and drawings).
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tranquility
®
Large Water-to-Water
(
TMW
)
Series
Rev.: June 12, 2020
ClimateMaster Water-Source Heat Pumps
12
Ground-Water Heat Pump Applications
Expansion Tank and Pump - Use a closed, bladder-
type expansion tank to minimize mineral formation due
to air exposure. The expansion tank should be sized
to handle at least one minute run time of the pump to
prevent premature pump failure using its drawdown
capacity rating. Discharge water from the unit is not
contaminated in any manner and can be disposed of
in various ways depending on local building codes; i.e.
recharge well, storm sewer, drain eld, adjacent stream
or pond, etc. Most local codes forbid the use of sanitary
sewer for disposal. Consult your local building and zoning
department to assure compliance in your area.
Water Control Valve - Note the placement of the water
control valve. Always maintain water pressure in the heat
exchanger by placing water control valves at the outlet
of the unit to prevent mineral precipitation. Slow opening
and closing valves are recommended to reduce water
hammer. If water hammer persists, a mini-expansion
tank can be mounted on the piping to help absorb the
excess hammer shock. Ensure that the total ‘VA’ draw
of any eld-supplied valve can be supplied by the unit
transformer.
Flow Regulation - Flow regulation can be accomplished
by two methods. First, most water control valves have
a built in ow adjustment. By measuring the pressure
drop through the unit heat exchanger, ow rate can be
determined and compared to Table 2. Since the pressure
is constantly varying, two pressure gauges might be
needed. Simply adjust the water control valve until
the desired ow of 1.5 to 2 gpm per ton is achieved.
Secondly, a ow control device may be installed. The
devices are typically an orice of plastic material that
is designed to allow a specied ow rate. These are
mounted on the outlet of the water control valve. On
occasion, these valves can produce a velocity noise that
can be reduced by applying some back pressure. This
is accomplished by slightly closing the leaving isolation
valve of the well water setup.
Shut off valves should be included for ease of servicing.
Unit has internal ush valves to allow alkaline ushing
of just the heat exchanger. Pressure temperature plugs
should be used so that ow and temperature can be
measured.
Supply and return water piping materials should
be limited to copper, PE, or similar material. PVC or CPVC
should never be used as they are incompatible with the
POE and PVE oils used in HFC-410A products and piping
system failure and property damage may result.
Table 1: Water Quality Standards
Table 2
In areas with extremely hard water, the owner should
be informed that the intermediate heat exchanger may
require occasional ushing. Use a 2% phosphoric or
sulfamic acid solution, on the unit side and manufacturer’s
recommendation on ground water side.
Water Containing Concentration
Ammonia Less than 2.0 mg/l
CaCO3 Alkalinity 30 - 500 mg/l
CaCO3 Hardness 30 - 500 mg/l
Chlorides Less than 200 mg/l
Dissolved Solids Less than 1000 mg/l
Iron Less than 5.0 mg/l
Manganese Less than 4.0 mg/l
Nitrate Less than 100 mg/l
pH 7.0 - 9.0
Sulphate Less than 200 mg/l
Model Flow GPM
Pressure Drop
PSI (FT)
TMW360
45 1.2 (2.7)
68 2.4 (5.6)
90 4.2 (9.6)
TMW600
75 1.7 (3.9)
113 3.6 (8.3)
150 6.3 (14.5)
TMW840
105 2.7 (6.2)
158 6.0 (13.7)
210 10.4 (23.7)
WARNING! Polyolester Oil, commonly known as POE oil, or
Polyvinylether, commonly known as PVE oil, are synthetic
oils used in many refrigeration systems including those with
HFC-410A refrigerant. POE, or PVE oil, if it ever comes in
contact with PVC or CPVS piping, may cause failure of the
PVC/CPVC. PVC/CPVC piping should never be used as
supply or return water piping with water source heat pump
products containing HFC-410A as system failures and
property damage may result.
� WARNING! �
Water quantity should be plentiful and of good quality.
Consult Table 1 for water quality guidelines. The unit has
stainless steel braze plate heat exchangers. In ground
water situations where scaling could be heavy or where
biological growth such as iron bacteria will be present, a
closed loop system is recommended. It is mandatory to
install an intermediate heat exchanger to isolate an open
loop from the heat pump loop on open well systems. Heat
exchangers may over time lose heat exchange capabilities
due to a build up of mineral deposits inside. These can be
cleaned only by a qualied service mechanic as acid and
special pumping equipment are required.
climatemaster.com
13
Tranquility
®
Large Water-to-Water
(
TMW
)
Series
Rev.: June 12, 2020
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Ground-Loop Heat Pump Applications
Pre-Installation - Prior to installation, locate and mark
all existing underground utilities, piping, etc. Install loops
for new construction before sidewalks, patios, driveways,
and other construction has begun. During construction,
accurately mark all ground loop piping on the plot plan
as an aid in avoiding potential future damage to the
installation.
Antifreeze - In areas where minimum entering loop
temperatures drop below 40°F [5°C] or where piping will
be routed through areas subject to freezing, anti-freeze
is needed. Alcohols and glycols are commonly used as
antifreezes, however your local sales manager should be
consulted for the antifreeze best suited to your area. Low
temperature protection should be maintained to 15°F [9°C]
below the lowest expected entering loop temperature. For
example, if 30°F [-1°C] is the minimum expected entering
loop temperature, the leaving loop temperature would be
25 to 22°F [-4 to -6°C] and low temperature protection
should be at 15°F [-10°C] e.g. 30°F - 15°F = 15°F [-1°C -
9°C = -10°C]. All alcohols should be premixed and pumped
from a reservoir outside of the building when possible or
introduced under water level to prevent fuming. Initially
calculate the total volume of uid in the piping system.
Then use the percentage by volume shown in Table 3 for
the amount of antifreeze. Antifreeze concentration should
be checked from a well mixed sample using a hydrometer
to measure specic gravity.
Piping Installation - All earth loop piping materials should
be limited to only polyethylene fusion for inground sections
of the loop. Galvanized or steel tting should not be used
Table 3: Antifreeze Percentages by Volume
� CAUTION! �
CAUTION!
The following instructions represent industry
accepted installation practices for Closed Loop Earth
Coupled Heat Pump Systems. They are provided to assist
the contractor in installing trouble free ground loops. These
instructions are recommendations only. State and Local
Codes MUST be followed and installation MUST conform to
ALL applicable Codes. It is the responsibility of the Installing
contractor to determine and comply with ALL applicable
Codes and Regulations.
Type
Minimum Temperature for Low
Temperature Protection
10°F
[-12.2°C]
15°F
[-9.4°C]
20°F
[-6.7°C]
25°F
[-3.9°C]
Methanol 25% 21% 16% 10%
100% USP Food Grade
Propylene Glycol
38% 25% 22% 15%
Ethanol 29% 25% 20% 14%
* Must not be denatured with any petroleum based product
at any time due to their tendency to corrode. All plastic
to metal threaded ttings should be avoided due to their
potential to leak in earth coupled applications and a anged
tting substituted. P/T plugs should be used so that ow
can be measured using the pressure drop of the unit heat
exchanger in lieu of other ow measurement means. Earth
loop temperatures can range between 25 to 110°F [-4
to 43°C], and 2.25 to 3 gpm of ow per ton [2.9 l/m to
3.9 l/m per kW] of cooling capacity is recommended in
these applications. Upon completion of the ground loop
piping, pressure test the loop to assure a leak free system.
Horizontal Systems: Test individual loops as installed.
Test entire system when all loops are assembled. Vertical
U-Bends and Pond Loop Systems: Test Vertical U-bends
and pond loop assemblies prior to installation with a test
pressure of at least 100 psi [689 kPa].
Flushing the Earth Loop - Upon completion of system
installation and testing, ush the system to remove all
foreign objects and purge to remove all air. Flush the loop
rst with the unit isolated to avoid ushing debris from the
loop into the unit heat exchanger.
Water Control Valve -
Note the placement of the water
control valve. Always maintain water pressure in the heat
exchanger by installing water control valves at the source
out of the unit to prevent mineral precipitation. Position
water high pressure switch between unit and valve. Pilot
operated or slow closing valves are recommended to reduce
water hammer. If water hammer persists, a mini-expansion
tank can be mounted on the piping to help absorb the
excess hammer shock. Insure that the total ‘VA’ draw of the
valve can be supplied by the unit transformer. For instance,
some slow closing valves can draw up to 35VA. This can
overload smaller transformers depending on the other
controls employed. A typical pilot operated solenoid valve
draws approximate
ly 15VA.
Flow Regulation -
Install on source in of unit. Flow
regulation can be accomplished by two methods. First,
most water control valves have a built in ow adjustment.
By measuring the pressure drop through the unit heat
exchanger, ow rate can be determined and compared
to Table 2. Since the pressure is constantly varying, two
pressure gauges might be needed. Simply adjust the water
control valve until the desired ow of 2.5 to 3 gpm per ton
[2.0 to 2.6 l/m per kW] is achieved. Secondly, a ow control
device may be installed. The devices are typically an orice
of plastic material that is designed to allow a specied ow
rate. These are mounted on the outlet of the water control
valve. On occasion, these valves can produce a velocity
noise that can be reduced by applying some back pressure.
This is accomplished by slightly closing the leaving isolation
valve of the well water setup.
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tranquility
®
Large Water-to-Water
(
TMW
)
Series
Rev.: June 12, 2020
ClimateMaster Water-Source Heat Pumps
14
Electrical – Line Voltage
General Line Voltage Wiring - Be sure the available
power is the same voltage and phase as that shown on
the unit serial plate. Line and low voltage wiring must
be done in accordance with local codes or the National
Electric Code, whichever is applicable.
TMW Power Connection - Line voltage connection is
made by connecting the incoming line voltage wires to L1,
L2, and L3 on power distribution block. Consult electrical
data table 4 for correct fuse size.
208 Volt Operation - All 208-230 Volt units are factory
wired for 208 Volt. The transformers may be switched to
230V operation as illustrated on the wiring diagram by
switching the Red wire from H2 to H3 terminal on the
transformer.
All eld installed wiring, including electrical ground, must
comply with the National Electrical Code as well as all
applicable local codes.
Refer to the unit wiring diagrams for fuse sizes and a
schematic of the eld connections which must be made
by the installing (or electrical) contractor.
� WARNING! �
WARNING! To avoid possible injury or death due to electrical
shock, open the power supply disconnect switch and secure
it in an open position during installation.
� CAUTION! �
CAUTION! Use only copper conductors for eld installed
electrical wiring. Unit terminals are not designed to accept
other types of conductors.
Model Voltage Code Voltage
Voltage Min/
Max
Compressor
Total Unit FLA
Min Circuit
Amps
Max
UL/CSA
HACR
Qty
RLA
(EA)
LRA
(EA)
TMW360
H 208-230/60/3 187/254 2 56.4 425 113 127 175
F 460/60/3 414/506 2 25.5 173 51 57 80
N 575/60/3 518/633 2 20.4 128 41 46 60
TMW600
H 208-230/60/3 187/254 2 94.7 605 189 213 300
F 460/60/3 414/506 2 42.8 272 86 96 125
N 575/60/3 518/633 2 34.3 238 69 77 110
TMW840
H 208-230/60/3 187/254 2 124.3 599 249 280 400
F 460/60/3 414/506 2 56.2 310 112 126 175
N 575/60/3 518/633 2 45.0 239 90 101 125
HACR circuit breaker in USA only
Table 4: TMW Large Electrical Data
Electrical Connection - The compliance of the installation
to relevant local and national codes is the responsibility
of the installer. Before carrying out any electrical work,
conrm that the main supply is isolated. The installer must
ensure that the correct electrical drawing is available.
Before power is applied to the system, the wiring should
be visually inspected for loose connections or frayed
terminal connections. All control wiring should follow
wiring instructions supplied in the project submittal
package.
Consult the unit wiring diagram located on the inside of
the compressor access panel to ensure proper electrical
hookup. All nal electrical connections must be made
with a length of exible conduit to minimize vibration and
sound transmission to the building.
Incoming Power Wiring - The power for all units is
taken from a suitable fused disconnect power supply
within the main panel and the electrical service enters
the individual units through the top into the units control
panel enclosure. Proper grounding is mandatory. The
power supply shall be in compliance with all local and
national codes.
climatemaster.com
15
Tranquility
®
Large Water-to-Water
(
TMW
)
Series
Rev.: June 12, 2020
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Electrical – Line Voltage, Cont’d.
Proper Voltage Balance - Occasionally, in three phase
circuits, a voltage imbalance occurs between phases.
It is not recommended to operate equipment when an
imbalance greater that 2% occurs. This causes motors to
run at high temperatures and may affect their longevity.
The following example describes how to calculate
the average voltage of the three phases to see if the
imbalance is greater than 2%.
Example:
Line one = 226v Line two = 230v Line three = 228v
The average is: 226+230+228 = 228v
Next, 100
(
228-226
)
= 0.9%
228
The voltage imbalance of the three phase circuit is 0.9%.
This is well under the 2% range.
� SAFETY WARNING �
WARNING! High voltage is used to operate this equipment.
Failure to observe standard electrical safety procedures
may result in serious injury. Only persons qualied and /
or properly trained should attempt to install, operate and
maintain this equipment. These units come fully charged
with refrigerant. Installation, and start – up should be
accomplished by technicians who are fully certied to handle
refrigerants, as required by 40 CRF Part 82, subpart F of the
Recycling and Emissions Reduction Act. Scroll compressors
are used in this equipment. Phase verication is required
for proper rotation direction. Incorrect rotation will result in
elevated sound and internal overload trip failure.
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tranquility
®
Large Water-to-Water
(
TMW
)
Series
Rev.: June 12, 2020
ClimateMaster Water-Source Heat Pumps
16
Electrical – Line Voltage, Cont’d.
DDC Control Wiring - Control wiring cannot be installed
in the same conduit as line voltage wiring or with wires
that switch highly inductive loads such as contactor and
relay coils. All wiring shall be in compliance with all local
and national codes.
Electrical Phase Sequencing - Proper clockwise rotation
for scroll compressor motors is important to prevent
damaging the compressors. ClimateMaster recommends
the use of a phase sequence indicating instrument
following the manufactures directions. Another alternative
would be to “bump test” the compressors one at a time
with pressure gauges attached to the high and low gauge
ports of the compressors to check for proper rotation.
Energize the compressor for a few seconds to ensure the
discharge pressure gauge increases signicantly. If the
discharge pressure does not increase, proper rotation
is reversed. Compressor rotation can be reversed by
opening the main electrical disconnect and switching
any two of the main power supply leads feeding that
compressor’s contactor.
Low Voltage Knockouts are provided on top, sides, or
front of unit. Run wires into low voltage section. Connect
to terminal strips per wire diagram.
� ATTENTION INSTALLER �
3 Phase Scroll Compressor Units
• If this unit uses a 3 Phase Scroll Compressor, the following
instructions MUST BE followed:
- Unit power supply MUST BE wired in the proper sequence
to avoid damage to the 3 Phase Scroll Compressor;
- Scroll Compressors with INCORRECT rotation show the
following characteristics:
1) High sound level;
2) High suction pressure and low discharge pressure;
3) Low current draw.
- If any of the three above characteristics exist, swap two
of the three supply wires at the disconnect/fuse block and
recheck compressor for incorrect rotation.
climatemaster.com
17
Tranquility
®
Large Water-to-Water
(
TMW
)
Series
Rev.: June 12, 2020
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Wiring Diagram Matrix
All diagrams can be located online at climatemaster.com/
commercial/literature/wiring-diagrams using the part
numbers below.
Model Refrigerant
Wiring Diagram
Part Number
Electrical Agency
TMW360-840
EarthPure
®
HFC-410A
96B0152N01
208-230/60/3
460/60/3
575/60/3
UL
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tranquility
®
Large Water-to-Water
(
TMW
)
Series
Rev.: June 12, 2020
ClimateMaster Water-Source Heat Pumps
18
Typical Wiring Diagram
climatemaster.com
19
Tranquility
®
Large Water-to-Water
(
TMW
)
Series
Rev.: June 12, 2020
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Typical Wiring Diagram, Cont’d.
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tranquility
®
Large Water-to-Water
(
TMW
)
Series
Rev.: June 12, 2020
ClimateMaster Water-Source Heat Pumps
20
Typical Wiring Diagram, Cont’d.
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